Each chapter has been updated, with special focus on the most important aspects of SP1, including: * Install on Windows Server 2008 enables * IVp6 Support * Unified Messaging inclusion * EMC enhancements * Client Access Improvements for Outlook Web Access and ActiveSync * New user interfaces for POP3 and IMAP4 * System resource monitoring and message routing improvements * New features for the mailbox server role *. Data files pst repair management * New high availability features * Optimization for mobile access * And much more! * Complete coverage of all the updates in SP1 ensure admins spend a bug release early 2007 and upgraded easily * Written by HP Services CTO Tony Redmond, the world's most reliable writers Stock books for more than a decade * 250 + page updates throughout, including totally new sections on Windows 2008 compatibility, Microsoft Yona, Windows Mobile 6 and 6.1 devices, Apple iPhone, and more!